Scale of the Universe

I stumbled onto this intriguing website. It is an interactive tool to learn about the scale of the universe. Suggestion: Drag the slide bar to the far left and use your keyboard "left and right arrows" to control the slide bar. You can click on any object to learn more about it.

BTW, I tried the new Toodledo Bookmark Feature and added this URL to my "Reference" folder! It worked great!